89cc Super Stock Cylinder Head, Silver

【S&S Cycle 106-3255 89cc Super Stock Cylinder Heads Silver Engine Parts Proto】
■Description: S&S Super Stock high-performance cylinder heads are designed for 2006-16 engines with stock crankcases. They are suitable for engines with stock displacement, but are ideal for slightly larger stroke or big bore engines up to 110 cubic inches. The 89cc combustion chambers result in a slightly higher compression ratio than stock, but this is manageable for larger-than-stock engines. This makes them suitable for touring and other heavy models. The larger 2.000" intake valves and 1.605" exhaust valves provide ample airflow for slightly larger engines to perform to their full potential, while maintaining port velocity for good low to mid-range response. The intake ports flow 264 CFM, compared to 182 CFM for stock heads. S&S high-performance valve springs allow for camshafts with up to 0.65" lift. Compatible with stock rocker boxes, exhaust, and intake manifolds. ■Specifications Color: Silver Material: Aluminum alloy Finish (surface treatment): Powder coat Included: 2 cylinders, gaskets, hardware ■Notes *Images are for illustration purposes only. May include products with different sizes and colors. Product designs and specifications are subject to change without notice. Please be aware.